The quadratic equation whose roots are $l$ and $m$,where
$\begin{aligned}
& l=\lim _{\theta \rightarrow 0}\left(\frac{3 \sin \theta-4 \sin ^2 \theta}{\theta}\right), \\
& m=\lim _{\theta \rightarrow 0} \frac{2 \tan \theta}{\theta\left(1-\tan ^2 \theta\right)}, \text{ is}
\end{aligned}$

  • A
    $x^2+5x+6=0$
  • B
    $x^2-5x+6=0$
  • C
    $x^2-5x-6=0$
  • D
    $x^2+5x-6=0$

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